STAGE 1: BACKWARD PASS
GPU (LOW VRAM) VRAM: 2GB / 80GB CPU (SYSTEM RAM) RAM: 120GB / 256GB GRADS BUCKET I/O LOAD SAVE COMPUTE CORE FWD / BWD Pass Adam Update Step SLIDING WINDOW (VRAM) Active Bucket: None [ PRMS | GRDS | OPT ] CPU CHUNK 0 Params | Gradients | Adam State CPU CHUNK 1 Params | Gradients | Adam State CPU CHUNK 2 Params | Gradients | Adam State CPU CHUNK 3 Params | Gradients | Adam State